The range of atlanto-occipital joint angle (ROM) depends on the prey habitat, and the way cetaceans use to capture prey. The cetaceans that prefer benthic/demersal prey had a relatively large ROM ...

A blockage of the atlanto-occipital joint causes unfocused dizziness, which in older people may well be accompanied by unstable gait, and, additionally, often headache and sensations of eye ...

On 9 month follow up CTA imaging, it was identified that the patient developed ossification of the posterior atlanto‐axial membrane and capsular ligaments. On further questioning of the patient, he ...

Ankylosing spondylitis is one of the commonest inflammatory diseases of the axial skeleton and can be complicated by atlanto-axial instability ... subluxation and instability is localised synovitis ...